Quantitative Study on MFL Characteristics of Launch Vehicle Solenoid Valves and Design of Polarity Detection System
Traditional testing methods for solenoid valve polarity of launch vehicles are often detected through the method of"lis-tening and touching",which has problems such as missed detection and false detection,inability to accurately interpret,and low tes-ting efficiency.Therefore,typical attitude control solenoid valves were carried out to measure and quantitatively analyze the magnetic leakage performance,and grasp the distribution of magnetic leakage fields in various parts of the valve body and the attenuation law of leakage magnetic fields with distance.A non-contact visual polarity detection system design method for electromagnetic valves was proposed,and three redundant sensitive probes for sampling and programming design were used to ensure the accuracy of polarity de-tection.Through the verification of experimental testing,it achieves 100％detection of electromagnetic valve actions and accurate in-terpretation of timely actions without precise installation,which improves the polarity detection ability and testing efficiency of sole-noid valves.This system is successfully applied on the testing process of large launch vehicles,and it is of great significance to im-prove the automation testing level for launch vehicles.
NETL
NSTL
万方数据
